Mahārāja Yudhiṣṭhira was very much anxious to know how this child will be affectionate to his prajā. Just see. The astrologer was speaking so many things about the child, that "He'll be like this, he'll be like this, he'll be like this." But he was anxious that "Whether he'll be worthy of our dynasty." Because in this dynasty, this sūrya-vaṁśa, all the kings were just like father of the citizens. "Whether he'll be like that or he'll be exploiter?" Then the brahmins explained, "No, this child will be like this," and actually he was that.
So these rājarṣis, they were great personalities. They were, although on the royal throne, they were not for luxury and tax collecting. No. They were just exactly like real father, always thinking of the happiness of the prajās. It was actual democracy. There was committee of the brahmins who guided the king, and the king was, I mean to say, control over the citizens by the guidance of the brahmins. This was the system. So here it is said, evaṁ paramparā-prāptam imaṁ rājarṣayo viduḥ (BG 4.2). This system for understanding Bhagavad-gītā was current. Kṛṣṇa says to Arjuna.
Now He says also, sa kālena iha mahatā yogaḥ . . .
(break) . . . spoke the secret of this Bhagavad-gītā to his son Manu. Manu spoke the secret of the Bhagavad-gītā to his son Ikṣvāku. So now that system is now lost. Kālena mahatā: by the great power. Kāla means time. Time has got his influence, very great influence. Time's business is, whatever you make, time will try to kill it. That's all.